BUTLER, Pennsylvania - Donald Trump was standing on a stage behind a podium, six minutes into his speech at an outdoor rally in Butler, Pennsylvania, his head turned to the right, under a clear sky and in broiling heat.Suddenly there was a volley of "pops" — what sounded like gunshots. Trump immediately clutched his right ear, looked at the blood on his hand and then quickly dropped to the ground behind the podium.The crowd screamed and those in the bleachers behind him crouched.
As the Secret Service agents surrounded Trump and moved him to a nearby black SUV, Trump continuously raised his fist as they pushed him into the vehicle, to more chants of "USA!"An eyewitness told the BBC he saw the shooter climb on the roof of a low-rise building just outside the security perimeter with a rifle and shouted to nearby police officers to alert them to the potential threat. Police initially seemed confused and did not immediately respond to the warning, he said.